How long is the sponsorship undertaking for a spouse or partner?

When you sponsor a partner, you sign an undertaking to be financially responsible for them for 3 years, beginning on the date they become a permanent resident.

This means you commit to supporting their basic needs during that period, and the obligation generally continues even if the relationship later breaks down. The three-year undertaking is shorter than the parent and grandparent undertaking, reflecting the different nature of partner sponsorship.